Wrench.



PATENTED DEC. 5, 1905.

W. R. OELKRAG.

WRENCH.

APPLICATION FILED mum, 1905.

I YE TOR filial? Oelira WITNESSES onrrnn .s rnrns Parser orrron.

WILLIAM ROBBERT OELKRAG, OF BAYONNE, NEW 7 JERSEY.

' W R E N C H i A Specification of Letters Patent.

Patented Dec. 5, 1905.

Application filed May 24, 1905. Serial No- 262,100.

To all whom, it may concern:

Be it known that LWILLIAM ROBBERT OEL- KRAG, a citizen of the UnitedStates, residing at Bayonne, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements in Wrenches,of which the following is a specification, such as will enable thoseskilled in the art to which it appertains to make and use the same.

This invention relates to wrenches of the class known as monkey-wrenchesand the object thereof is to provide an improved combination-wrench ofthis class which may also be used as a pipe-wrench; and with this objectin view the invention consists in a combination-wrench of the classspecified constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in which Figure 1 is a side view of my improvedwrench, part of the construction being in section; Fig. 2, a perspectiveview showing another part of the wrench in section, and Fig. 3 atransverse section 011 the line 3 3 of Fig. '1.

My improved wrench comprises a bar or shank member a, provided at oneend with a handle I) and at the opposite end with a stationary jawmember 0, and on which is mounted a movable sliding jaw member d. Thestationary jaw member 0 comprises two jaws c and c and these jaws areheld at an angle to each other, said angle being in the constructionshown about one hundred and thirty-five degrees, the angle of these jawsbeing similar to that of the jaws d and d of the movable jaw member (Z,the angle of the jaws d and d being shown in Fig. 3. The jaw d operatesin connection with the jaw 0?, and said jaw d is provided with an eXtension (1, which projects in the direction of the handle 6, and in theinner face of the jaw d and the extension (1* recess dyin which isplaced a movable plate (i and the inner side of the plate d and thecorresponding face of the shank or bar a is serrated or roughened, asshown at (1 and passed through the extension d* of the jaw d is athumb-and-iinger set-screw e, which bears on the plate d and by means ofwhich the movable or sliding jaw member (if may be thereof is alongitudinal locked at any desired point of adjustment on the shank orbar a.

The jaw (i of the movable jaw member d is provided in the face thereofwith a recess e in which is pivoted a supplemental jawblock 6 and theside walls of the recess e are provided with curved slots 6 throughwhich is passed a pin a which also passes through the supplemental jaw 6and secured to the outer side of the jaw d is a platespring f, one endof which projects over the supplemental jaw e and is curved outwardly,as shown at f and secured to said supplemental jaw e and to the jaw d byscrews, pins, bolts, or otherwise, as shown at).

The adjacent faces of the stationary jaw c and the supplemental jaw eare provided with transverse teeth 9 or otherwise roughened, so as toenable said jaws to grip a pipe, and the jaws c and (2 form apipe-wrench which may be operated in the usual manner,

and by placing the jaws c and c at an angle to each other, ashereinbefore described, and the jaws d and d at a corresponding angle toeach other I provide means whereby my improved wrench may be operatedeither as an ordinary monkey-wrench, the aws c and d being employed forthis purpose, or as a pipe-wrench, in which case the jaws c and e areemployed, and the angle at which the jaws c and e are set facilitatesthe use of my improved .wrench as a pipe-wrench, while the spring-platef, or the outwardly-curved end f 2 thereof, holds the supplemental jaw ein position for use at all times, and the operation of this part of thewrench will be readily understood.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A wrench of the class described, compris- I ing a shank member providedat its end with two jaws which project in difierent direc tions and atan angle to each other, an adjustable jaw member mounted on said shankand provided with two jaws which correspond in position with the jaws onthe shank member; one of the jaws of the adjustable jaw member beingprovided in its bearingsurface with a recess the side walls of which areprovided with oblong apertures, a supplemental jaw-block mounted in saidrecess, a pin passing through said jaw-block and said apertures, aspring secured to the ad justable jaw member and to the jaw-block andadapted to hold the latter in a Predeter- I enoe of the subscribingWitnesses, this 23d mined position, and means for adjusting thesupplemental jaw member on the shank member, substantially as shown andde- 5 scribed.

In testimony that I claim the foregoing as my invention I have signedmyname, in pres- I day of May, 1905.

WILLIAM ROBBERT OELKRAG.

Witnesses 2 FRANK J. WEIs, CHRISTIAN FINOK.

